The coroner preparing to remove the body of Thomas Stratton from his home in the 1800 block of Gretta Avenue in Valinda on Tuesday, Sept, 11, 2018. Detectives said Stratton shot his sister, his nephew then himself on Monday, Sept. 10, 2018. Stratton, 64, and Ezekiel Griego, 18, died Monday while Jeanita Griego, 60, died Tuesday night. (Ruby Gonzales)

Jeanita Griego was pronounced dead at 8:58 p.m. Tuesday at Pomona Valley Hospital Medical Center, according to Lt. John Corina of the Los Angeles County Sheriff’s Homicide Bureau.

It is the same hospital where the other victim in the shooting, Griego’s 18-year-old son Ezekiel Griego, died.

Griego’s brother, 64-year-old Thomas Stratton, shot her and Ezekiel Griego while they were sitting in the back patio of their home in the 1800 block of Gretta Avenue on Monday night, Corina said.

He said Griego’s 23-year-old son heard the shooting, saw his uncle holding a handgun and fled.

A neighbor drawn outside by the barking of the Griego’s dogs said the son was screaming that his uncle shot his mother and brother. He told Griego’s son to come over to his yard, called 911 then handed the phone to the 23-year-old.

After shooting his sister and younger nephews in the heads, Corina said Stratton went to his room and shot himself in the head.

Corina said there was a dispute between Stratton and Jeanita Griego. She wanted to evict him.

But Corina thinks the eviction was just part of the motive. He said Stratton argued Monday with his sister and nephews over the treatment of the dogs. Stratton was also allegedly claiming ownership of the dogs.

Ruby Gonzales started working for the company in 1991. Since then she has written about cities, school districts, crimes, cold cases, courts, the San Gabriel River, local history, anime, insects, forensics and the early days of the Internet when people still referred to it as the "information superhighway." Her current beat includes breaking news, crimes and courts for the San Gabriel Valley Tribune, Pasadena Star News and Whittier Daily News. When not in crime reporter mode, she frequents the remaining bookstores in the San Gabriel Valley, haunts craft stores or gets dragged to eateries by a relative who is a foodie.